View Full Version : Munchkin Boiler Help!
02-19-2007, 11:40 AM
I have a 3 year old house that I built. I put infloor heat throughout the house and had a Munckin Boiler installed. The boiler has been nothing but problems. Flame rods, return pump, air fuel mixture, venting, and initial fire up have all been issues and things that have been serviced/replaced.
A recent problem was the flame rod (again) and the heat kicked out on a cold Minnesota day and I had a water pipe break. Problem is, I am overseas and have my father and a friend trying to deal with it all. Now the circut board and zone valve are malfunctioning and the boiler won't shut off. For now, the water pipes have been drained and the house is sitting cold.
Do I have the ultimate lemon boiler or have people had similar issues. I have to decide if it is worth trying to fix or if I just scrap the unit and get a different boiler. Thoughts? Thanks.
02-19-2007, 12:19 PM
Pump failure has nothing to do with the boiler. Neither does the zone valve. There are people that love this boiler and people that hate it.
Air/fuel, venting and initial fire up sound like install/start up problems. Again, not usually a boiler issue.
Flame rod issues can be hard to troubleshoot without being there.
If the zone valve has an endswitch, that won't shut off, that may be the reason the boiler won't shut off. May not be anything wrong with the board.
02-19-2007, 12:44 PM
Rick - Thanks for the quick reply. Like I said, I've been overseas for the last year so it's tough for me to troubleshoot too. The boiler continuely kicks off. Mostly E9 and E10 codes. I've had two different HVAC companies look at it and nobody has been able to get it running right. All of the issues I mentioned were things I was told that would "solve the problem". I've heard these Munchkins are like sports cars and that they need some "fine tuning". Sounds like you think that the problems may be peripheral and not the boiler itself.
02-19-2007, 01:10 PM
I would contact HTP direct and express your concerns. It sounds like your not getting the service personal you need.
Clink on Support
02-19-2007, 11:47 PM
went through the same problem with a customer. condensate backed up into unit and caused refractory and target refractory to puff up. sparker grounded on refractory and did not ignite burner every time, sensor also was having grounding issue. replacesd both refactorys (with new style water resistant coating) and flame rod. cleaned heat exchanger throughly with proper chemicals and methods and haven't had another call except for yearly service. they are a simple enough unit but can be very sensitive to set up and diagnose. find out who the munchkin dealer in your area is and use them for your service provider.
02-20-2007, 12:09 AM
They are great little boilers but require alot of maintenance.At three years old I would bet it needs a tear down & chemical cleaning badly!I agree with reefer rob.
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