Rheem 136-1826 installation instructions Problem

Problem

1.Heater will not operate:

TROUBLE SHOOTING

Possible Cause

Electrical:

•Main power

•Manual reset switch.

•Operating controller.

•Controller in-operative.

•Flow Switch Mechanical:

•Gas Line

•Plugged bleedline on pressure regulator, gas valves, etc.

•Broken pump coupler.

Action

Check circuit breaker, fuses, etc. Power at boiler control switch should be 115 volts.

Check all controls. If reset is tripped determine reason and correct. Check power to all controls with voltmeter. Adjust to desired operat- ing temperatures.

Remove sensor. Check for immer- sion or sensing.

Replace if faulty.

Check pump for operation.

Open shutoff cock(s)

Loosen bleed line and clean.

Check reason for failure.

Inspect bearing assembly, shaft and impeller.

Replace coupling.

•Gas valve will not open:

1.Diaphram type.

2.Motorized type

Check bleed line. Clean. Check solenoid. Replace if defective.

Check auxiliary switches.

a.Auxiliary switch;

b.Valve closed switch.

Power should be 115 volts.

2.Pilot burner will not light

Note: Actuator is not field repairable. If problem is other than switch(es) replace.

3. Combination type	Check	controller.
Intermittent Ignition Module	Check	power to 25 VAC input
(IID)	terminal
	1. If 25 VAC:

- Check for 1/8" spark @ pilot. a. Spark ok:

• Check gas supply.

• Burner orifice.

• Dampness @ electrode or high tension wire.

• Check for 25 VAC @ PV; MV/PV terminals. 1. Voltage @ 25 VAC

- Replace pilot valve. 2. Voltage not @ 25 VAC

- Replace module. 2. No 25 VAC @ input terminal.

- Check transformer output. a. 25 VAC

• Check limit circuit. b. No 25 VAC

• Replace transformer.

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