Posted by George Larose on October 26, 2001 at 16:57:00:
In Reply to: Instant Highfire! posted by Robert on October 24, 2001 at 10:06:22:
: I have a Cleaver Brooks 125 hp firetube boiler generating 100psi steam. This morning I discovered that after blowing down boiler and after prepurge boiler came on line as normal but went to 100% fire even though it was set to only go to 50%. In automatic mode it is bypassing the preset setting (ignoring it) and continuing to 100% fire. When I switch to manual mode it will stop at the preset mode of 50% fire. Where should I start looking for the problem? Modulator motor?
If there is an automatic high-fire delay timer, I would look there first.
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