I'm looking to see if my symptoms fit with a typical scenario before I call in the pool guy (who around here will try to sell me a new heater).
Pentair Mastertemp 250 (Canada), installed 2015, the older un-connected control board and 5 button panel. SWG DE inground Pool.
Has worked pretty flawlessly since install (while I've watched neighbours' Haywards go up in smoke, literally). Towards end of last season I noticed it reported seemingly lower temps than the pool thermometer and had to be "upped
" a few degrees to get to the temp we wanted. (I have replaced the keypad in year or two prior.)
This season while starting up I noticed some mice turds and mouse grease in the white air orifice. Nothing chewed. Cleaned the orifice, took it off, blew out the blower, it spins freely.
Heater starts up (R13) and ignites, exhausts as as normal.
256 - 303f stack temp water speed dependant
I do hear some air gurgle through each time it re-starts, but I don't see any apparent leaks.
I've noticed that I like a hotter pool the older I get. (slipped that in to see if anyone is still reading.
)
Shuts down before target temp reached, "Service Heater" light, no other diagnosis LEDs lit. Controls lock out, usually I turn off and on again, but I believe that it will try to cycle and sometimes comes back on for a bit.
Amount of time before shut down varies quite a bit, from a few minutes to hours.
I noticed once or twice that the reported water temp was a few degrees higher than it really was, but it also shows normal most of the time (and I set target temp much higher to try to keep it going). Always get the Service Heater led when it shuts down.
Are there any typical cuplrits to look for or easy parts replacements? (I am handy and know how to use a MM).
My chemistry is kept pretty darn near perfect and normally CSI tends more towards negative. It is also a borated pool.
So I am wondering if first step would be to inspect and replace the Thermal Regulator or ?
(Thank you in advance for any help!!)
Pentair Mastertemp 250 (Canada), installed 2015, the older un-connected control board and 5 button panel. SWG DE inground Pool.
Has worked pretty flawlessly since install (while I've watched neighbours' Haywards go up in smoke, literally). Towards end of last season I noticed it reported seemingly lower temps than the pool thermometer and had to be "upped
" a few degrees to get to the temp we wanted. (I have replaced the keypad in year or two prior.)
This season while starting up I noticed some mice turds and mouse grease in the white air orifice. Nothing chewed. Cleaned the orifice, took it off, blew out the blower, it spins freely.
Heater starts up (R13) and ignites, exhausts as as normal.
256 - 303f stack temp water speed dependant
I do hear some air gurgle through each time it re-starts, but I don't see any apparent leaks.
I've noticed that I like a hotter pool the older I get. (slipped that in to see if anyone is still reading.
)Shuts down before target temp reached, "Service Heater" light, no other diagnosis LEDs lit. Controls lock out, usually I turn off and on again, but I believe that it will try to cycle and sometimes comes back on for a bit.
Amount of time before shut down varies quite a bit, from a few minutes to hours.
I noticed once or twice that the reported water temp was a few degrees higher than it really was, but it also shows normal most of the time (and I set target temp much higher to try to keep it going). Always get the Service Heater led when it shuts down.
Are there any typical cuplrits to look for or easy parts replacements? (I am handy and know how to use a MM).
My chemistry is kept pretty darn near perfect and normally CSI tends more towards negative. It is also a borated pool.
So I am wondering if first step would be to inspect and replace the Thermal Regulator or ?
(Thank you in advance for any help!!)
