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

to

Check current to electrical out-

when heater is

heater

 

 

let. If current is good, check

plugged in.

 

 

 

heater power cord for breaks.

 

Fan hitting

inside

of

Adjust motor/fan guard to keep

 

heater shell

 

 

fan from hitting inside of

 

 

 

 

heater shell. Bend fan guard if

 

 

 

 

necessary.

 

Heater electrical wiring

Relocate wires using wiring

 

improperly connected

 

diagram.

 

Fan blades bent

 

Replace fan. See Motor and

 

 

 

 

Fan, page 10.

 

Defective motor

 

Replace motor. See Motor and

 

 

 

 

Fan, page 10.

 

 

 

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 5 and Operation,

 

 

 

 

page 7.

 

No spark at ignitor. To

A) Check ignitor wire. Tighten

 

test for spark, follow step

or reattach loose ignitor wire.

 

8 under Ignitor, page 11.

See Figure 11, page 11 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:

 

4.3 mm.

 

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 11.

 

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

 

Damaged fan

 

Excessive dust or debris

 

in surrounding area

This can happen when running heater in temperatures above 29° C. Run heater in cooler temperatures.

Check heater inlet and outlet. Remove any obstructions.

Replace fan. See Motor and Fan, page 11.

!WARNING

Use only in areas free of high dust content.

Clean heater. See

Maintenance, page 8.

9

102588

Page 11
Image 11
Desa BLP35E owner manual TROUBLE- Shooting, Observed Fault Possible Cause Remedy

BLP35E specifications

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