ALLIANCE JT37CGI Service Manual download pdf (Page 21)

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Section 3 Troubleshooting

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the tumbler before servicing.

• Close gas shut-off valve to gas tumbler before servicing.

• Close steam valve to steam tumbler before servicing.

• Never start the tumbler with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the tumbler is properly grounded.

W002

WARNING

20. TUMBLER RUNS BUT NO STEAM TO COILS — STEAM MODELS

21. WATER IN STEAM LINE — STEAM MODELS

POSSIBLE CAUSE TO CORRECT

Valves closed. • Check all valves in supply and return lines, make sure

they are open.

Blocked steam trap. • Remove trap and clean. Replace if inoperative.

Inoperative solenoid valve. • Check operation of solenoid valve.

Incorrect installation of check valve. • Check for inlet and outlet markings on check valve, and

invert if necessary.

Clogged strainer. • Remove strainer and clean.

Inoperative timer or thermostat • Test timer or thermostat. Replace if inoperative.

POSSIBLE CAUSE TO CORRECT

Incorrect installation of steam piping. • Refer to Installation Manual (supplied with tumbler) for

steam requirements.

Trap functioning improperly. • Check trap for size and capacity. If trap is dirty or sluggish

clean thoroughly or replace. Check return line for high

back pressure.

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ALLIANCE JT37CGI Service Manual Page 21