TROUBLESHOOTING

WARNING:Turnoffandunplugheaterandletcoolbeforeservicing. Only a qualified service person should service and repair heater.

CAUTION: Never use a wire, needle or similar object to clean ODS/pilot. This can damage ODS/pilot unit.

Note: All troubleshooting items are listed in order of operation.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

 

When ignitor button is pressed,

1.

Ignitor electrode positioned wrong

1.

Replace pilot assembly

there is no spark at ODS/pilot

2.

Ignitor electrode broken

2.

Replace pilot assembly

 

3.

Ignitor electrode not connected to

3.

Reconnect ignitor cable

 

 

ignitor cable

 

 

 

 

4.

Ignitor cable pinched or wet

4.

Free ignitor cable if pinched

 

 

 

 

by any metal or tubing. Keep

 

 

 

 

ignitor cable dry

 

5.

Piezo ignitor nut is loose

5.

Tighten nut holding piezo ignitor

 

 

 

 

to heater cabinet. Nut is located

 

 

 

 

inside heater cabinet at top

 

6.

Broken ignitor cable

6.

Replace ignitor cable

 

7.

Bad piezo ignitor

7.

Replace piezo ignitor

When ignitor button is pressed,

1.

Gas supply turned off or equipment

1.

Turn on gas supply or open

 

there is spark at ODS/pilot but

 

shutoff valve closed

 

equipment shutoff valve

no ignition

2.

Control knob not in PILOT posi-

2.

Turn control knob to PILOT

 

 

tion

 

position

 

3.

Control knob not pressed in while

3.

Press in control knob while in

 

 

in PILOT position

 

PILOT position

 

4.

Air in gas lines when installed

4.

Continue holding down control

 

 

 

 

knob. Repeat igniting operation

 

 

 

 

until air is removed

 

5.

Depleted gas supply

5.

Contact local propane/LP gas

 

 

 

 

company

 

6.

ODS/pilot is clogged

6.

Clean ODS/pilot (see Cleaning

 

 

 

 

and Maintenance, page 13) or

 

 

 

 

replace ODS/pilot assembly

 

7.

Gas regulator setting is not correct

7.

Replace gas regulator

ODS/pilot lights but flame goes

1.

Control knob not fully pressed in

1.

Press in control knob fully

 

out when control knob is re-

2.

Control knob not pressed in long

2.

After ODS/pilot lights, keep con-

leased

3.

enough

3.

trol knob pressed in 30 seconds

 

Safety interlock system has been

Wait one minute for safety in-

 

 

triggered

 

terlock system to reset. Repeat

 

 

 

 

ignition operation

 

4.

Equipment shutoff valve not fully

4.

Fully open equipment shutoff

 

 

open

 

valve

 

5.

Thermocouple connection loose

5.

Hand tighten until snug, then

 

 

at control valve

 

tighten 1/4 turn more

 

6.

Pilot flame not touching thermo-

6.

A) Contact local propane/LP gas

 

 

couple, which allows thermocouple

 

company

 

 

to cool, causing pilot flame to go

 

 

 

 

 

out. This problem could be caused

 

B) Clean ODS/pilot (see Clean-

 

 

by one or both of the following:

 

ing and Maintenance, page 13)

 

 

A) Low gas pressure

 

or replace ODS/pilot assembly

 

 

B) Dirty or partially clogged

 

 

 

 

 

ODS/pilot

 

 

 

 

7.

Thermocouple damaged

7.

Replace pilot assembly

 

8.

Control valve damaged

8.

Replace control valve

14

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Desa RH10PT installation manual Troubleshooting, Observed Problem Possible Cause Remedy

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