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Boiler is calling for HW but nothing is on? Cadet heating…

Customer Question
Hi - boiler...

Hi - boiler is calling for HW but nothing is on?

Contractor's Assistant: I'll do all I can to help. How long have you been dealing with this?

Cadet heating boiler

Contractor's Assistant: Did you double-check the thermostat's settings? And what about the filters?

Thermo is off - meaning not calling for heat

Contractor's Assistant: Do you plan on doing the work yourself?

Trying if its easy enough and not required plumbing work

Contractor's Assistant: Anything else we should know to help you best?

Error code - b01 - setpoint met

Submitted: 7 months ago.Category: HVAC
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Answered in 1 minute by:
10/26/2017
HVAC Technician: Rick, HVAC Supervisor replied 7 months ago
Rick
Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 24,020
Experience: 40+ yrs. experience as a licensed oil & gas technician.
Verified

Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. First I’ll need some more info so I have a more complete picture of your situation.

I need the brand and actual model number of your boiler. Also do you have an indirect fired water heater?

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Customer reply replied 7 months ago
Cadet model # CCN120yes, indirect.... I believe
HVAC Technician: Rick, HVAC Supervisor replied 7 months ago

So you have a separate hot water tank that circulates boiler water through an internal coil to heat the DHW?
There's a glitch with your account. If you want to talk contact customer service. Or we can continue here

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Customer reply replied 7 months ago
It's DHW... I don't have separate hot water tankI updated CC on account.
HVAC Technician: Rick, HVAC Supervisor replied 7 months ago

Ok so you have a combi unit. Fixing this is not a DIY project

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Customer reply replied 7 months ago
combi unit as DHW and also hotwater for heating..... yes...from the description of the problem - I can not T/S myself with your help? I need a plumber?
HVAC Technician: Rick, HVAC Supervisor replied 7 months ago

Yes you need a plumber who is familair with this unit. No way an untrained person can deal with this

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Customer reply replied 7 months ago
OK.... Is it safe to leave unit on or should I turn off completely until I get plumber?
HVAC Technician: Rick, HVAC Supervisor replied 7 months ago

It's safe but I'd turn it off. No need to leave it on in this condition.

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Customer reply replied 7 months ago
Heat not working now because hot wall call is superseding heat...
but hot water is working.... I guess I can turn on when I need hot water and turn off after... unitl plumber...correct?
HVAC Technician: Rick, HVAC Supervisor replied 7 months ago

Yes. But if HW is working then I'd wait and see if the heat works ok after the call for HW is complete. It may have just been a temporary glitch and not need any repairs. Besides if it's working there's no way to diagnose a problem

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Customer reply replied 7 months ago
sorry - maybe I didn't do a good job explaining the problem....1. hot water is working.
2. boiler is calling for hot water when no facets are on.
3. because boiler is thinks it has a hot water call - it's not making heat for house as hot water call supersedes heat.
4. it's been about 2-3 hours and boiler still is displaying on the lcd that there is a hot water call.does that makes sense of my problem?
HVAC Technician: Rick, HVAC Supervisor replied 7 months ago

Ok, then yes just turn on when you need HW

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