TROUBLE-
SHOOTING
Note: All troubleshooting items are listed in order of operation.
WARNING
Turn off and unplug heater and let cool before servicing. Unless you need gas supply for testing, shut off manual shutoff valve before servicing. Only a qualified service person should service and repair heater and venting system.
CAUTION
Never use a wire, needle, or similar object to clean pilot. This can damage pilot.
OBSERVED | POSSIBLE |
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PROBLEM | CAUSE | REMEDY |
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When ignitor button is pressed, there is no spark at pilot.
1.Incorrect spark gap.
2.Ignitor electrode posi- tioned wrong.
3.Ignitor electrode broken.
4.Ignitor electrode not con- nected to ignitor cable.
5.Ignitor cable pinched or wet.
6.Piezo ignitor nut is loose.
7.Broken or frayed ignitor cable.
8.Loose ignitor cable.
9.Bad piezo ignitor.
1.Adjust spark gap to 1/16".
2.Replace ignitor.
3.Replace ignitor.
4.Reconnect ignitor cable.
5.Free ignitor cable if pinched by any metal or tubing. Keep ignitor cable dry.
6.Tighten nut holding piezo ignitor to heater cabinet. Nut is located inside heater cabinet at top.
7.Replace ignitor cable.
8.Reconnect ignitor cable.
9.Replace piezo ignitor.
26
When ignitor button is pressed, there is spark at pilot but no igni- tion.
1.Gas supply turned off or manual shutoff valve closed.
2.Control knob not in PI- LOT position.
3.Control knob not pressed in while in PILOT posi- tion.
4.Air in gas lines when in- stalled.
5.Pilot is clogged.
6.Gas regulator setting is not correct.
1.Turn on gas supply or open manual shutoff valve.
2.Turn control knob to PI- LOT position.
3.Press in control knob while in PILOT position.
4.Continue holding down control knob. Repeat ig- niting operation until air is removed.
5.Clean pilot (see Cleaning and Maintenance, page
25)or replace pilot as- sembly.
6.Replace control valve.
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