I N S T R U C T LX SERIES DISHWASHER I O N S LX SERIES DISHWASHERS MODELS LX18 LX18C LX18H LX30 LX30C LX30H LX40C LX40H ML-104349 ML-104350 ML-104351 ML-104352 ML-104353 ML-104354 ML-104355 ML-104356 701 S. RIDGE AVENUE TROY, OHIO 45374-0001 937 332-3000 www.hobartcorp.com FORM 18615 Rev.
TABLE OF CONTENTS GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Trim Strip Accessory Kit . . . . . . . . . . . . . . . . . .
Installation, Operation, and Care of LX SERIES DISHWASHERS SAVE THESE INSTRUCTIONS GENERAL The LX Series dishwashers are fully automatic, front-loading dishwashing machines which are equipped with a 3 / 4 horsepower electric motor. All LX Series dishwashers shut down automatically four hours after last use to conserve energy. Standard equipment includes two 20" x 20" racks, electronic controls, pumped drain, fill hose and drain hose.
INSTALLATION UNPACKING Immediately after unpacking the dishwasher, check for possible shipping damage. If this machine is found to be damaged, save packaging material and contact the carrier within 15 days of delivery. Prior to installation, verify that the electrical supply agrees with the specifications on the machine data plate. TRIM STRIP ACCESSORY KIT (Optional) If you ordered the trim strip accessory kit, it must be installed prior to positioning the dishwasher.
PLUMBING CONNECTIONS WARNING: PLUMBING CONNECTIONS MUST COMPLY WITH APPLICABLE SANITARY, SAFETY, AND PLUMBING CODES. Drain A drain hose is provided with a 3/4" pipe connection adapter. This should be securely plumbed into the sink drain. Use care not to kink hose. See installation diagrams in this manual. Drain must have a minimum flow capacity of 10 gallons per minute.
ELECTRICAL CONNECTION WARNING: ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH THE APPLICABLE PORTIONS OF THE NATIONAL ELECTRICAL CODE AND/OR OTHER LOCAL ELECTRICAL CODES. WARNING: DISCONNECT ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT SWITCH TO INDICATE THAT YOU ARE WORKING ON THE CIRCUIT.
Refer to the data plate on the front of the machine and the label inside the control drawer at the power connection for proper selection. Use stranded copper wire only. 1. Remove the cover plate at the upper right in the back of the machine (Fig. 1). A hole for 1" trade size conduit is supplied in the cover plate. Cover Plate PL-40805-1 Screws Fig. 1 PL-40163-1 Fig. 2 2. Open dishwasher door and remove the 2 screws (Fig. 2) securing the controls drawer.
DETERGENT AND RINSE AID If manually adding detergent in an LX18, LX18C, or LX18H at the beginning of each cycle, the machine must be programmed to the “True Fill and Dump” mode. This will ensure detergent is not dumped before filling with fresh, hot water. Contact your local Hobart Service Office to arrange for conversion. Use only commercial grade detergents recommended by your chemical professional. Do not use detergents formulated for residential dishwashers.
INSTALLATION DIAGRAM (LX18, LX18C & LX18H) — 329300 –9–
INSTALLATION DIAGRAM (LX30, LX30C & LX30H) — 329301 – 10 –
INSTALLATION DIAGRAM (LX40C & LX40H) — 329302 – 11 –
OPERATION CAUTION: Items such as pewter, aluminum, and silver will be attacked by sodium hypochlorite (bleach). Therefore, chemical sanitizing dishwashers should not be used to wash such items. If your dishwasher is a chemical sanitizing model, frequently check the clear portion of your chemical feed standpipe (at your sanitizer bottle) to make sure there is a sufficient chemical supply. BEFORE FIRST USE This machine must be cleaned after installation and before being put into operation.
Operating Models LX18, LX18C, LX18H, LX30, LX30C, and LX30H Dishwashers DO THIS Press ON. DISPLAY SHOWS REMARKS Model number. Dishwasher performs self check. This takes 5-10 seconds. FILL lit and sump temperature displayed when machine is filling. Dishwasher fills with water. When filled, pump turns on for 10 seconds. If door is opened during fill cycle, fill will stop. After door is closed, the process continues where it stopped.
DIAGNOSTIC MESSAGES In the event of a problem with a temperature probe, the display will flash "P1," "P2," or "P3" every 10 seconds. The respective heaters will shut down. Other functions will continue to operate normally. Contact your local Hobart Service Office. Drain and fill error messages are displayed as E0, E2, E3, E4, E5, E6, or E7. In all cases, the dishwasher will terminate current cycle operations, turn off all heat sources, and display the message until the OFF button is pressed.
MODELS LX30, LX30C and LX30H WASH/RINSE CYCLE TIMES Wash 85 Sec.** Drain* 10 Sec. Max. Dwell 4 Sec. Rinse 10 Sec. Dwell 6 Sec. * Drains off about 1 gallon of water. **Wash time is 145 seconds for 70°F rise option.
CONTROLS — Models LX40H & LX40C (Fig. 4) PRIME ON ON OFF LX40 PROGRAM °F °C WASH LOW DETERGENT SANITIZER CALL SERVICE RINSE AGENT SELECT RINSE ADD PRIME LIGHT NORMAL HEAVY DELIME CYCLE WASH DELIME PL-52242 Models LX40H & LX40C Fig. 4 Operating Models LX40H & LX40C DO THIS Press ON. DISPLAY SHOWS REMARKS Two counts of "00000" to "99999", then model number. Dishwasher performs self check. This takes 5-10 seconds. FILL displayed when machine is filling.
Operating Models LX40H & LX40C (Continued) DO THIS Open door; slide rack of dishes into dishwasher. Close door. DISPLAY SHOWS REMARKS READY. Press WASH. WASH lit and sump (Before you press WASH, temperature displayed you can change the cycle during wash cycle. selection if desired. See READY MODE below.) RINSE lit and incoming water temperature displayed during rinse cycle. Machine initiates a wash and rinse cycle.
DIAGNOSTIC MESSAGES In the event of a problem with a temperature probe, the display will flash PROBE and CALL SERVICE will be lit. The respective heaters will shut down. Other functions will continue to operate normally. Contact your local Hobart Service Office. Drain and fill error messages are displayed as PRBLM/DR1, PRBLM/FILL1, PRBLM/FILL2, PRBLM/ FILL3, PRBLM/DR2, or OP J1.
MANAGER PROGRAMMING (Machine Must Be In READY Mode) To enter the Manager Programming Mode, you must first enter the Operator Programming Mode by pressing and holding "LX40" on the control panel (this is the HIDDEN key), then pressing WASH. Once you are in the Operator Programming Mode, press SELECT until PROGRAM is lit. Press and hold the HIDDEN key, then press WASH again to enter the Manager Programming Mode. The possible options to edit are listed in the following table.
PROGRAMMABLE VARIABLES AND RECOMMENDED SETTINGS — MODELS LX40H & LX40C The following functions of the dishwasher are programmable. The chart below shows the variables that may be programmed for each function and the recommended setting for each.
Dishes must be scraped and/or rinsed to remove food particles and other debris. Never use steel wool on ware to be loaded into the dishwasher. Place dishes in a rack. Do not stack dishes on top of each other as water must have free access to all sides of every dish. Stand plates edgewise in a peg-type rack (Fig.7). Cups, glasses and bowls should lay upside down in an open or compartment-type rack (Fig. 7). Silverware and other small pieces should lay loosely on the bottom of a flat-bottom rack.
CLEANING — ALL MODELS This machine must be cleaned at least once each working day. Use only products formulated to be safe on stainless steel. 1. Press OFF. The machine will drain. When the display is no longer lit, open the door and remove any debris from the bottom of the tank. Do not allow food soil to accumulate on the tank bottom. 2. Models LX30, LX30C, LX30H, LX40C & LX40H Only: Remove the lower rinse arm by unscrewing the knurled knob (Fig. 8).
MAINTENANCE DELIMING — GENERAL WARNING: DELIMING SOLUTION, RINSE AGENTS, OR ANY OTHER KIND OF ACID MUST NOT COME IN CONTACT WITH BLEACH OR RINSE SOLUTION CONTAINING BLEACH USED IN CHEMICAL SANITIZING MACHINES. MIXING MAY CAUSE HAZARDOUS GAS TO FORM. THIS ENTIRE PROCEDURE MUST BE FOLLOWED STEP-BY-STEP FOR SAFE AND SATISFACTORY RESULTS. Delime the dishwasher on a regular basis as required. The regularity will depend on mineral content of the supply water.
DELIMING — Models LX30, LX30C & LX30H 1. Remove standpipe assemblies from chemical containers and place them as close to the floor as possible. Place a catch pan under them. 2. Cycle the machine four times to clear the lines of chemicals. 3. Remove rack from machine. 4. Add deliming agent (carefully follow supplier's instructions). The sump holds approximately 3 gallons of water. 5. Close door. Press WASH and allow machine to complete the wash/rinse cycle. 6. Press OFF. 7.
DELIMING — Models LX40H and LX40C Models LX40H and LX40C are equipped with an automatic delime cycle reminder. After the preprogrammed number of cycles has expired, the control will indicate the delime request by illuminating DELIME. At this point, you must either enter a delime cycle or reprogram the number of cycles to terminate the DELIME indication. 1. Remove rack from machine. Close door. 2. Make sure machine is in the READY mode (READY indicated in the display). 3.
TROUBLESHOOTING This section outlines various symptoms and possible causes that may be encountered in the event of abnormal machine operation. If symptoms persist after possible causes have been checked, service may be required. SYMPTOM POSSIBLE CAUSES No machine operation (No display). 1. Machine OFF — turn machine ON. 2. Blown fuse or circuit breaker off at power supply. 3. Cord not plugged in (corded models only) No machine operation (With display). 1.
SYMPTOM Unexpected results on dishes. POSSIBLE CAUSES 1. Etching — usually caused by any combination of high temperatures, soft water, soft glass, or high alkaline washing solutions. 2. Tarnishing — avoid washing silver, silver plate and pewter in chemical sanitizing machines. 3. Pitting — stainless steel may pit with lengthy contact of foods containing salt, fruit juices, vinegar, etc. Wash immediately. 4. Black or gray marks — may have been rubbed with aluminum. 5.
SYMPTOM POSSIBLE CAUSES Machine fills too high or leaks from door. 1. Machine not level — see LEVELING in this manual. 2. Fill solenoid valve leaking — turn the dishwasher OFF; if water continues to come in (through the rear fill air gap on LX18 models or rinse arms of LX30 and LX40 models), call your local Hobart Service Office. 3. Drain pipes restricted — check dishwasher drain line for kinks; ensure proper drain rate is allowed from plumbing. 4. Turn machine OFF.