Desa CRN30 installation manual Troubleshooting, Observed Problem Possible Cause Remedy

Models: CRN30

1 32
Download 32 pages 45.03 Kb
Page 19
Image 19

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 in, there is no spark at ODS/ pilot

1.Ignitor electrode positioned wrong

2.Ignitor electrode broken

3.Ignitor electrode not con- nected to ignitor cable

4.Ignitor cable pinched or wet

5.Broken ignitor cable

6.Bad piezo ignitor

7.Piezo ignitor nut is loose (piezo ignition models only)

8.Battery not installed, battery power low or battery not installed correctly (electronic ignition models only)

1.Replace pilot assembly

2.Replace pilot assembly

3.Reconnect ignitor cable

4.Free ignitor cable if pinched by any metal or tubing. Keep ignitor cable dry

5.Replace ignitor cable

6.Replace piezo

7.Tighten nut holding piezo ignitor. Nut is located inside heater cabinet at top

8.Install new alkaline battery in electronic ignitor. Verify battery is installed correctly

When ignitor button is pressed in, there is a spark at ODS/Pilot but no ignition

1.Gas supply turned off or equip- ment shutoff valve closed

2.Control knob not fully pressed in while pressing ignitor button (non-thermostat models only) Thermostat control knob not fully pressed in while press- ing ignitor button (thermostat models only)

3.Air in gas lines when installed

4.Depleted gas supply (propane/ LP gas)

5.ODS/pilot is clogged

6.Gas regulator setting is not correct

7.Thermostat control knob is not in pilot position (thermostat models only)

1.Turn on gas supply or open equipment shutoff valve

2.Turn to PILOT/IGN position. Fully press in control knob while pressing ignitor button (non-thermostat models only) Fully press in thermostat control knob while pressing ignitor but- ton (thermostat models only)

3.Continue holding down con- trol knob. Repeat igniting op- eration until air is removed

4.Contact local propane/LP gas company

5.Clean ODS/pilot (see Cleaning and Maintenance, page 18) or replace ODS/pilot assembly

6.Replace gas regulator

7.Turn thermostat control knob to pilot position

107883-01H

www.desatech.com

19

Page 19
Image 19
Desa CRN30 installation manual Troubleshooting, Observed Problem Possible Cause Remedy