Section V. Troubleshooting

29

 

 

TROUBLESHOOTING (GENERAL)

Possible Cause

Remedy

 

 

Heater will not come on

 

 

 

 

Check if electrical connections are

Automatic ignition system fails

correct and securely fastened –

 

If YES, call serviceperson.

Pump not running

Place pump in operation

Pump air locked

Check for leaks

Filter dirty

Clean filter

Pump strainer clogged

Clean strainer

Defective wiring or connection

Repair or replace wires

Defective pressure switch

Replace switch

Defective gas controls

Call serviceperson

On-Off switch in "OFF" position

Turn switch to "ON"

Heater Short Cycling (Rapid On and Off Operation)

 

 

Insufficient water flow

Clean filter and pump strainer

Defective wiring

Repair or replace wiring

Defective flow valve or out of adjustment

Call serviceperson

Defective hi-limit and/or thermostat

Call serviceperson

Heater Makes Knocking Noises,

make sure all valves on system are open.

Heater operating after pump has shut off

 

 

Shut off gas supply and call serviceperson

Heater exchanger scaled

 

 

Shut off gas supply and call serviceperson

 

 

 

 

 

SERVICE CHECKS—IGNITION MODULE

 

 

 

 

 

Symptom

Cause/Cure

 

 

 

 

 

 

 

1.

Dead

A. Miswired

 

 

 

 

B. Transformer bad

 

 

 

 

C.

Fuse/Circuit breaker bad

 

 

 

 

D.

Bad control

 

 

 

 

 

 

 

 

2.

Thermostat on—no ignition

A.

Miswired

 

 

 

 

B. Bad thermostat no voltage at terminal

 

 

 

 

 

 

 

 

3.

Valve on, no ignition

A.

Defective ignitor

 

 

 

 

B.

Miswired

 

 

 

 

C. Bad control (check voltage at ignitor)

 

 

 

 

 

 

 

 

4.

Ignitor on, no valve action

A.

Valve coil open

 

 

 

 

B. Open valve wire

 

 

 

 

C. Bad control (check voltage)

 

 

 

 

 

 

 

5.

Flame okay during

A. Bad flame sensor

 

 

 

Try For Ignition (TFI),

B.

Bad wires

 

 

 

no flame sense (after TFI)

C.

Poor ground at burner

 

 

 

 

D. Poor flame (check flame current)

 

 

 

 

 

 

 

 

Rev. G • Rév. G 5-27-04

P/N • Réf. 472090

Page 29
Image 29
Pentair 200 installation manual Troubleshooting General, Service CHECKS-IGNITION Module

200 specifications

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