Procom ML170EPC Installation Manual download pdf (Page 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

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Procom ML170EPC Installation Manual Page 17

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