Desa RCLP50A owner manual TROUBLE- Shooting, Observed Fault Possible Cause Remedy

TROUBLE- SHOOTING

WARNING

Never service heater while it is plugged in, connected to propane supply, operating, or hot. Severe burns and electrical shock can occur.

OBSERVED FAULT	POSSIBLE CAUSE	REMEDY
Fan does not turn	No electrical power	Check voltage to electrical out-
when heater is	to heater	let. If voltage is good, check
plugged in and start		heater power cord for breaks.
switch depressed.	Fan hitting inside of	Adjust motor/fan guard to keep
	heater shell	fan from hitting inside of heater
		shell. Bend fan guard if neces-
		sary.
	Fan blades bent	Replace fan. See Fan, page 12.
	Defective motor	Replace motor. See Motor,
		page 11.
Heater will not	User did not follow instal-	Repeat installation and opera-
ignite.	lation or operation in-	tion instructions. See Installa-
	structions properly	tion, page 6 and Operation,
		page 7.
	No spark at ignitor. To	A) Check ignitor wire. Tighten
	test for spark, follow step	or reattach loose ignitor wire.
	9 under Ignitor, page 13.	See Figure 13, page 13 for igni-
	If you see spark at ignitor,	tor wire location.
	have heater serviced by	B) Set gap between ignitor
	qualified service person.	electrode and target plate to
	If no spark seen:	4.32 mm (.17").
	A) Loose or disconnected	C) Tighten nut holding piezo
	ignitor wire	ignitor to base of heater.
	B) Wrong spark gap	D) Replace ignitor electrode.
	C) Piezo ignitor loose	See Ignitor, page 13.
	D) Bad ignitor electrode

Heater shuts down	High surrounding air tem-
while running.	perature causing thermal
	limit device to shut down
	heater.
	Restricted air flow

This can happen when running heater in temperatures above 29°C (85°F). Run heater in cooler temperatures.

Check heater inlet and outlet. Remove any obstructions.

10

Damaged fan

Excessive dust or debris in surrounding area

Replace fan. See Fan, page 12.

WARNING

Use only in areas free of high dust content.

Clean heater. See Mainte- nance, page 9.

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