Associations & Brands
Pentair Mastertemp / Waterco Turbotemp Gas Heater REPAIRS AND Services
Pentair Mastertemp
Pentair Mastertemp gas heaters are a compact High-efficiency gas pool and spa heater. They have a rounded tube bundle heat exchanger unlike any other on the market. We carry spare parts and service these regularly.
Models: Natural Gas or LPG
More Info & Pricing in Links Below:
Mastertemp 125 - Output : ~29kW
Mastertemp 200 - Output : ~46kW
Mastertemp 300 - Output : ~69kW
Mastertemp 400 - Output : ~92kW
Combustion Style:
Fan-forced downward, column flame.
Header Manifolds:
Noryl, multi-gasket, against mild-steel plate.
Heat Exchanger:
Copper / Cupro-nickel
Common Faults:
- Poor combustion due to incorrect gas pressure
- Failed overtemp switches
- Corroded thermistor
- Corroded thermal regulator
- Broken bypass
- Water leaks (generally fatal)
- Failed / Corroded PCB & Overlay
Waterco Turbotemp
Waterco Turbotemps were simply a re-branded Pentair Mastertemp. Waterco has moved on from these heaters. Waterco does not sell this version anymore.
Models: Turbotemp 125, 200, 300, 400
Common Faults:
- Poor combustion due to incorrect gas pressure
- Failed overtemp switches
- Corroded thermistor
- Corroded thermal regulator
- Broken bypass
- Water leaks (generally fatal)
- Failed / Corroded PCB & Overlay
Sta-Rite Max-E-Therm
About Pentair Heaters
Another re-branded Pentair Mastertemp, this time with a different outside casing. The internals are identical. Sta-rite actually designed this style of heater before Pentair took over.
Models: Max-E-Therm 200, 300, 400
Common Faults:
- Poor combustion due to incorrect gas pressure
- Failed overtemp switches
- Corroded thermistor
- Corroded thermal regulator
- Broken bypass
- Water leaks (generally fatal)
- Failed / Corroded PCB & Overlay
About Pentair Heaters
About Pentair Heaters
We carry almost all spare parts on-board, and are factory-trained. Spare parts can also be ordered and picked up from our shopfront at 10 Industry Blvd, Carrum Downs
More Information
They use a finely tuned fan-forced blower for efficiency.
Common Issues
Due to the efficiency of these heaters, there are some issues that can be of concern.
- Leaks on these heaters are often fatal, requiring a new gas heater.
- They are prone to water chemistry issues. When the heat exchanger leaks from corrosion, it can fill the entire combustion chamber with water.
- The bolts on the water manifold are made of mild steel and can rust.
- Can be difficult to diagnose issues.
Pentair / Waterco / Sta-Rite Troubleshooting
Pentair Mastertemp Error Codes & Troubleshooting
Pentair Mastertemp, Waterco Turbotemp, Sta-Rite Max-E-Therm Gas Heater Error Codes:
Service System LED On - Heater not detecting water pressure. Make sure valves in correct position, filters clean, and sufficient water flow through heater.
Service Heater LED On - Cycle Mains power off, then on. Try again. If fault reoccurs, see below.
Other Codes that may be seen:
AGS - Gas Shutoff. Temperature in heater is too high.
HLS - Hi Limit Switch Opened
PS - Pressure Switch Opened. Clean filters and ensure correct water flow.
AFS - Air Flow Switch Failure. Do no operate heater.
SFS - Stack Flue Sensor Error. Combustion may be incorrect.
E01 - Temp Sensor Failed. Water chemistry may be incorrect.
E02 - High Limit Sensor Failure. Ensure water flow is correct. If this reoccurs,
E03 - Thermal Fuse Failure. Temperature exceeded limits. Do not operate heater.
E04 - Fan Sensor Failure. Sensor error or blocked / sooted heat exchanger. May be bad gas supply or failed parts. Do not operate heater.
E05 - Stack Flue Sensor Failure. Sensor error or blocked / sooted heat exchanger. May be bad gas supply or failed parts. Do not operate heater.
Other Issues That Require Service:
Loud, high-pitched whine - Flame is too rich.
Flame is “fluttery.” Flame is too lean. Exhaust may have acrid smell or burner may fail
to stay lit.
Burner pulsates or Exhaust vent is too long. Reduce length of exhaust vent and/or surges, especially on number of elbows.
Boiling in heat exchanger - Low water flow to heater, pump and or filter. May be accompanied by water “bumping” sounds. Do not use heater.
R13 / R8 - Part of Startup Sequence. Wait for next step. Not an error
Smoke or Steam coming from heater. Switch heater off, and gas valve off. Do not use heater.
Frozen Screen - Heater may have restarted too many times. May be gas supply issue.
If any of the above continue, please Make a Booking
