ALLIANCE T30 Series Troubleshooting Manual page 141

64. Unit Will Not Heat – Steam (continued)
Please see following 2 pages for wiring diagram information.
70291301
No Heat
continued.
(12)
YES
Is there voltage across
the stove limit?
NO
(13)
NO
Is there voltage across
the coil of the steam valve?
YES
No
Does the steam valve
open allowing steam to flow?
Unit operational.
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Replace the stove
limit.
Correct wiring
between steam
valve and stove
limit.
Replace steam
valve.
TMB253S
TMB253S
NetMaster Troubleshooting
139