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Have a BRAND new Pentair Mastertemp 400. Worked for 1
Have a BRAND new Pentair Mastertemp 400. Worked for 1 weekend, now won't fire up. It 'rattles' 3 times, doesn't fire up, then the SERVICE HEATER light comes on. … read more
Poolservice123
Poolservice123
Owner
Associate Degree
764 satisfied customers
My pentair mastertemp 250 will turn on and ignite, will run
My pentair mastertemp 250 will turn on and ignite, will run for about a minute and then turn off. About a minute or 2 later it will turn on again and will do the same thing. I don't see any codes othe… read more
Poolservice123
Poolservice123
Owner
Associate Degree
764 satisfied customers
I have a pentair minimax 100 with and electronic ignition.
I have a pentair minimax 100 with and electronic ignition. But I do not hear it starting … read more
Poolservice123
Poolservice123
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Associate Degree
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Would you recommend using the Intellicenter as a Subpanel or
Hi - Would you recommend using the Intellicenter as a Subpanel or install a new panel to supply power to it?… read more
Poolservice123
Poolservice123
Owner
Associate Degree
764 satisfied customers
I have a mastertemp 400. I opened the pool last week but
Hi Pearl, I have a mastertemp 400. I opened the pool last week but turned the heater on today. The heater seems like it is going to fire, blower is strong, heating light blinks, I hear the click and a… read more
Mike R.
Mike R.
5,851 satisfied customers
I have pentair mastertemp 400 that is only a couple of years
hello, i have pentair mastertemp 400 that is only a couple of years old. when i turn on the pump, there is nothing on the display. if i cycle off and then backon the circuit breaker, the heater turns … read more
Poolservice123
Poolservice123
Owner
Associate Degree
764 satisfied customers
We have a 2008 Pentair Mastertemp 400 that is not working.
HI! We have a 2008 Pentair Mastertemp 400 that is not working. It seems to turn on fine, but we don't hear the burner ignite and then after some time the service light comes on. Any suggestions on whe… read more
Poolservice123
Poolservice123
Owner
Associate Degree
764 satisfied customers
I'm having problems with my Pentair Mastertemp 250.
I'm having problems with my Pentair Mastertemp 250. Background. This an natural gas model, 460732, which someone modified for a propane feed long before I bought the house. Recently I powered it up an… read more
Bill
Bill
Service Mgr
121 satisfied customers
I have a Pentair 300 pool heater and I am getting an EOS
I have a Pentair 300 pool heater and I am getting an EOS light; the unit shuts down 2 mins after firing. I have had the gass company out to check pressure and everything is to standard. What could be … read more
Rick
Rick
Supervisor
30,781 satisfied customers
Heater comes on - produces heat - shutsoff every 1 minute or
Heater comes on - produces heat - shutsoff every 1 minute or so - restarts - only light is service light - pretty sure I have good flow - and evern bumped it up a bit - same thing … read more
Rick
Rick
Supervisor
30,781 satisfied customers
Pentair Mastertemp 400 comes on automatically and will not
Pentair Mastertemp 400 comes on automatically and will not / cannot be turned. The heater does not ignite … read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,785 satisfied customers
Hello I have a Pentair mastertemp 250, when turned on the fan
Hello I have a Pentair mastertemp 250, when turned on the fan comes on as well as the heating light then it lights. You can hear the solenoid for the NG click open and as soon as it lights the sevice … read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
14,641 satisfied customers
I service pools in the San Fernando Valley in Ca and Im learning
I service pools in the San Fernando Valley in Ca and I'm learning how to troubleshoot heaters. I'm having trouble with an older Pentair Nt heater. The fan goes on and I hear the gas valve click and th… read more
poolguy810
poolguy810
owner - pool and spa service company
2 years electro mechanical training
1,702 satisfied customers
I have a Sta-Rite SR400HD heater which has worked great for
I have a Sta-Rite SR400HD heater which has worked great for years. I started heating the pool this morning in preparation for a party this Saturday. It ran for most of the day heating a 30k gallon poo… read more
aquaman
aquaman
Bachelor's Degree
57 satisfied customers
I have a Pentair Mastertemp 250 spa heater. When I turn it
I have a Pentair Mastertemp 250 spa heater. When I turn it on there is a loud noise an a burning electrical smell and smoke when the combustion blower comes on. the service light comes on after about … read more
poolguy810
poolguy810
owner - pool and spa service company
2 years electro mechanical training
1,702 satisfied customers
I have a pentair minimax nt series heater. I cant get it to
I have a pentair minimax nt series heater. I cant get it to ignite. The fan runs I do not smell gas. The green service lite is on. Also the 3 green LED lights on the back of the circuit board, the hig… read more
PitschPlumbing
PitschPlumbing
master plumber
Master Plumber
185 satisfied customers
I have a pentair pool heater, mastertemp. Last year after only
I have a pentair pool heater, mastertemp. Last year after only 2 years all of the internal parts...the fan and a number of other things all got replaces under warranty. We just opened our pool a coupl… read more
PitschPlumbing
PitschPlumbing
master plumber
Master Plumber
185 satisfied customers
Have a Pentair Minimax N7 heater. A few months ago it would
Have a Pentair Minimax N7 heater. A few months ago it would heat, but turn of well before reaching requested temp. Now I get no lights, whatsoever, on display. Fan is only thing I hear running; no hea… read more
PitschPlumbing
PitschPlumbing
master plumber
Master Plumber
185 satisfied customers
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Meet the Experts:

poolguy810

poolguy810

owner - pool and spa service company

1,702 satisfied customers

Servicing pools and all brands of spas for over 28 years.

Jerry

Jerry

Technician

373 satisfied customers

owned and operated spa and pool retail store for 12 yrs

PitschPlumbing

PitschPlumbing

master plumber

185 satisfied customers

Factory Authorized service for Rheem, Raypak, Jandy and Laars pool heaters. Gas licensed

spaman101

spaman101

spa/hot tub technician

125 satisfied customers

Spa repair and troubleshooting ..

Charles

Charles

Technician

38 satisfied customers

20 years experience

Poolscaper

Poolscaper

Pool and Spa Installer

26 satisfied customers

I own & operate a full service Pool & Spa Const.~ Service~Retail store

answersmadeeasy

answersmadeeasy

Pool Technician

13 satisfied customers

Experienced in pool and spa equip, heaters, salt systems

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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