Owner's manual

including motors, arcing relays or radio transmitters.

7/ Bad connection on temperature sensor or faulty

sensor – check connectors for continuity and

mechanical soundness while watching display for

erratic behavior; check sensor and wiring for

mechanical damage.

8/ Bad connections– check connectors for mechanical

soundness and look for corrosion around terminals or

signs of arcing or other visible deterioration.

Temp-9 Will not maintain set

point

1/ Assure that set point is at least 5 degrees over

ambient.

2/ See if ambient is fluctuating – check for adjacent

open doors or HVAC duct openings, stabilize ambient

conditions.

Temp-10 Display and reference

thermometer don’t

match

1/ Calibration error – see section 7.4.

2/ Temperature sensor failure – evaluate if pilot light is

operating correctly.

3/ Controller failure – evaluate if pilot light is operating

correctly.

4/ Allow at least 24 hours to stabilize at set point

temperature.

5/ Verify that reference thermometer is certified.

Temp-11 Can't adjust set points

or calibration

1/ Turn entire unit off and on to reset.

2/ If repeatedly happens, call Customer Service.

Temp-12 Calibrated at one

temperature, but not at

another

This can be a normal condition when operating

temperature varies widely. For maximum accuracy,

calibration should be done at or as close to the set

point temperature as possible.

MECHANICAL

Mech-1 Door not sealing

1/ Check physical condition of gasket.

2/ Tighten door latch till it pulls glass in.

3/ Assure that gasket is in original location.

4/ Adjust hinge blocks or twist the door.

5/ Confirm that unit has not been damaged and body

is square.

Mech-2 Motor doesn't move