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R13 code is displayed - Pentair Minimax NT Heater

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When turning on power display reads 128 then error code r 13, after this it say's spa on but the temp reads 126 and the water temp is only about 68 so the heater never comes on.


This is not an error code. 128 r13 is the normal programming or software version for your model. you need to press the spa on button again, make sure the temp set point is higher then the actual water temperature

Mar 07, 2016 | Pentair Master Temp 400K BTU Natural Gas...

1 Answer

Mastertemp 300 reads 128 r13 when breaker is turned on, then goes blank. any ideas? just replaced control board, transformer and ICM.


Do you have automation?
If so, Is it in Auto?
You still need to, Manually press the Pool or Spa ON button.
The 128, then the R13 are = Normal.
They are just confirmation of firmware numbers and the Revision of the software Logic.
Then if the Heater is NOT on, display will go blank.

May 14, 2015 | Pentair Mastertemp 300 Natural Gas Pool...

1 Answer

Sta-Rite SR400 heater displays error r13


this is not an error code, its the startup sequence to your heater. after those numbers have been displayed you have to press the pool on button and set your temperature

Dec 28, 2014 | Pool & Spa

1 Answer

What r13 code mean


There is no r13 code on your heater. The r13 flashes everytime you turn on your heater, wait, then see if it fires, if not, you will get an error code starting with EO then a number, or the "service system" or "service heater" light will come on.

Aug 06, 2014 | Sta Rite Maxi Therm 400k Btu Propane...

1 Answer

After 128 r13 displays, service system displays. What is wrong?


A lot of things could be wrong. Sounds like your not to mechanical, you could start with the air flow switch. I think it would be safer for you to call a heater pro.

Jun 15, 2014 | Pentair Mastertemp Heater

1 Answer

Brand new master temp 250 won't kick on to heat~ getting error code r13


r 13 is not an error code that is a program that runs at startup when the power is applied then the display goes blank, now you push pool on button and it should work

May 23, 2014 | Pentair Mastertemp Heater

1 Answer

Heater does't fire. led appear 128,r13 what's problem?


128 r13 is not an error code. its the startup sequence of that heater

May 14, 2014 | Pentair Mastertemp Heater

1 Answer

R13 code on display panel


this is a start up display and is normal when furst turned on but should go away

Apr 19, 2014 | Pentair Mastertemp 460733 250k Btu Propane...

1 Answer

Purchased Buffet r13 (serial # 555623) new, six months ago. Still under warranty. Since then have had technicians try to adjust mid b c key problems as well as others. R13 B660 is burned into the barrel....


The model designation for R13s is not usually on the upper and lower joints. If it was a Prestige, Tosca etc, it might have a little metal plaque on the top joint, but not on a regular R13.

Perhaps you could try a different repair technician - your run of the mill instrument repair person (even the guy who works where you bought it!) may not have the skills needed to really fine tune a professional instrument.

Apr 20, 2010 | Clarinet Systems Clarinet EthIR STAR 1000...

1 Answer

When turning the oven on to bake or broil it cuts off and beeps with a code r13 on display.


I will need the make and model number of the oven before going any further. Can you please supply this information so I can assist you ?

Jun 03, 2008 | Frigidaire Kitchen Ranges

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