Procom ML170EHPC, Owner'S Operation And Installation Manual

Page: 17 / 28

17
TROUBLESHOOTING
POSSIBLE CAUSE
1. No power to heater
2. ON/off switch not ON
3. Wire is damaged or loose
4. Pilot electrode position is not correct
5. Touch pad cable is not connected
6. System halt
1. Gas supply turned off or equipment
shut off valve closed
2. Air in gas lines when installed
3. Depleted gas supply
4. ODS/pilot is clogged
5. Gas inlet supply pressure not correct
6. Wire is damaged or loosen
7. Pilot electrude position is not correct
8. Gas valve or regulator is damage
1. Equipment shutoff valve is not
fully open
2. Thermocouple connection
loose at control module
3 Low gas pressure
4. Dirt or partially clogged ODS/pilot
5. Thermocouple damaged
6. Gas valve or regulator damaged
WARNING: If you smell gas
l
Shut off gas supply.
l
Do not try to light any appliance.
l
Do not touch any electrical switch; do not use any phone in your building.
l
Immediately cal l your gas supplier from a neighbor ’ s phone. Follow the gas
supplier ’ s instructions.
l
If you cannot reach your gas supplier, call the fire department.
IMPORTANT : Operating heater where impurities in air exist may create odors.
Cleaning supplies, paint, paint remover, cigarette smoke, cements and glues, new
carpet or textiles, etc., create fumes. These fumes may mix with combustion air
and create odors.
Warning :
Make sure that power
is turned off before proceeding.
CAUTION:
Never use a wire,
needle, or similar object to clean
ODS/pilot. This can damage
ODS/pilot unit.
OBSERVED PROBLEM
When ignition button is pressed,
there is no spark at ODS/pilot.
When IGN/OFF is pressed
Spark at ODS/pilot but no ignition.
ODS/pilot has flame, but continues
to spark.
WARNING: Turn off and let cool be-
fore servicing. Only a qualified ser-
vice person should service and re-
pair heater.
REMEDY
1. Check the electric power
2.Turn ON/OFF swicth on
3.Check the wire for damage and
make sure connection is tight
4.Replace Pilot
5. Reconnect touch pad cable
6. Place the control knob of
manual override or OFF position
for at least 1 minute, then trun to
ELECTRIC position
1.Turn on gas supply or open
equipment shutoff valve
2. Press ignitor button again until
air is removed
3.Contract local gas company
4.Clean ODS/pilot (see cleaning
and Maintenance, Page 12) or
replace ODS/pilot assembly
5.Have qualified service technician
check inlet pressure
6.Check the wire for damage and
make sure connection is tight
7.Replace Pilot
8.Contact dealer or PRO-COM
1. Fully open equipment shutoff
valve
2. Check that connectors secure
on module
3. Contact local natural gas company
4.Clean ODS/pilot (see Cleaning and
Maintenance, Page 13) or replace
ODS/pilot assembly
5. Replace thermocouple
6.Contact dealer or PRO-COM