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by Moo84
Mon Sep 09, 2019 6:06 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Boiler won't Fire With Second Command on Programmer
Replies: 1
Views: 1908

Boiler won't Fire With Second Command on Programmer

Hello everyone, Hoping to get some help on an issue. Y-Plan system Programmer: Honeywell ST9400A Boiler: Ideal Logic Heat 15 If no program is selected, and I, for example, select the extra hour function on either the HTG or HW, the boiler fires up no problem. If I turn it off and then select the oth...
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