Installation Instructions

E13
Installation instructions and Owner’s Manual
Mr. Heater / Infrared Workshop Heater
Table 4. Trouble Shooting Chart
Below in chart form are various symptoms of a malfunctioning system, possible defects that will cause these symptoms
and suggested corrective measures. The chart assumes that the proper gas pressure is available to the heater and that
the lighting procedure is as stated on the plate attached to the heater.
SYMPTOMS CAUSES SOLUTIONS
Burner light o󰀨 very slow
- Partially block pilot orce
- Pilot out of adjustment
- Replace
- Re-adjust pilot
Burner light o󰀨 very slow infra-red color
stays dull
- Partially block burner orice - Clean or Replace
Burner ash back (roaring noise during
operation)
- Low gas pressure
- Damaged burner
- Call your gas supplier:
Ceramic grid surface will need to be
replaced
Ceramic grid burner sooting
(when new or after cleaning)
- First check for damaged burner orice
- If burner orice is not damaged then
check for damaged manifold
- Replace if damaged
- Replace
Pilot can not be ignited
-Block pilot orice
-Gas cock not in position
- Pilot gas ow adjustment screw may
be closed
-Replace
- Gas cock knob must be turned to pilot,
depressed and held down.
- Open and adjust
(see Figure 12)
Pilot lights but goes out
-Defective thermocouple
-Defective control
- Replace
-Replace
Pilot stays lit but main burner will not
light
-Loose wire or improperly wired
-Defective control
-Blocked burner orice
- Tighten connections, check wiring
diagram
-Replace
-Clean orice or replace
Failure to ignite
-Main gas o󰀨
-Air in gas line
-Loose wire connections
-Dirty wire connections
-Open manual valves
-Bleed gas line
-Tighten wire connections
-Clean and Secure terminals
3. REPLACING THE GAS VALVE UNIT
A. Remove the two gas valve unit wires at the gas
control valve labeled “PP”.
B. Unscrew gas valve from gas piping.
C. Reconnect gas valve and unit wires to terminals
“PP”. Be sure to leave thermostat wire on one
terminal.
4. FREQUENCY OF OPERATOR CHECKS
Intermittent use. Appliances that are used seasonally
should be checked before shutdown and again before
the next use.
Dusty, wet or corrosive environment. Since these
environments can cause the gas control to deteriorate
more rapidly, the system should be checked more often.
The gas control should be replaced if:
A. It does not perform properly on checkout or trouble
shooting.
B. The gas control knob Is hard to turn or push down,
or it fails to pop back up when released.