Gledhill Appliance Repair in Matson, Robinswood and White City

What does error code 50 mean on a Gledhill A-Class system?

Error code 50 on Gledhill A-Class systems indicates the S5 temperature sensor (store bottom) has a short circuit. Turn off the system and isolate from the electrical supply. Inspect wiring for damage. The sensor likely needs replacing. Contact a qualified heating engineer to diagnose and replace with a Gledhill-approved part.

What does a slow flashing red light mean on a Gledhill PulsaCoil A-Class?

A slow flashing red light (once per second) on Gledhill PulsaCoil A-Class may indicate the unit has cooled and can be reheated using the On Peak Boost button, or it may indicate immersion heater element failure or burnt-out power relay. Try the boost button first; if no improvement, contact a qualified heating engineer.

What does error code 33 mean on a Gledhill A-Class system?

Error code 33 on Gledhill A-Class systems indicates an appliance selection error where the controller settings don't match the ID resistor fitted to the unit. Contact a qualified heating engineer to verify and correct the appliance selection settings or fit the correct ID resistor.

What does error code 45 mean on a Gledhill A-Class system?

Error code 45 on Gledhill A-Class systems indicates the S1 overheat sensor has a short circuit. Turn off the system and isolate from the electrical supply immediately. Inspect sensor wiring for damage or moisture. If wiring appears sound, the sensor needs replacing. Contact a qualified heating engineer immediately as this affects safety protection.

What does error code 51 mean on a Gledhill A-Class system?

Error code 51 on Gledhill A-Class systems indicates the S6 temperature sensor (store middle) has a short circuit. Turn off the system and isolate from the electrical supply. Check sensor wiring and connections. If intact, the sensor requires replacement. Contact a qualified heating engineer to fit a genuine Gledhill replacement sensor.

What does the boost button do on my Gledhill PulsaCoil?

The boost button or switch allows you to heat additional hot water during the day if you run out, using more expensive daytime electricity. It should only be used when needed and not left permanently on.

What should I do if my Gledhill cylinder goes into overheat lockout?

If your cylinder enters overheat lockout, first turn off all heat sources and allow the system to cool completely before attempting any reset. Do not tamper with safety valves or overheat thermostats. If hot water is discharging, turn off the heat source immediately. Some models have a manual reset button on the thermostat, but the cause of the overheat must be investigated by a qualified heating engineer before resetting to prevent recurrence.

Why don't Gledhill thermal stores need legionella pasteurisation cycles?

Gledhill thermal stores heat mains water instantaneously as it passes through a plate heat exchanger, rather than storing domestic hot water. Since the tap water is never stored within the appliance and is heated on demand, there is no standing water where legionella bacteria could multiply. This design eliminates the need for high-temperature pasteurisation cycles required by traditional stored hot water cylinders.

What temperature should my Gledhill cylinder be set to?

Gledhill cylinders should be set to achieve a minimum of 60°C to 65°C. This temperature needs to be achieved regularly to comply with legionella pasteurisation requirements and prevent the growth of harmful bacteria.

Why is water dripping from the tundish on my Gledhill cylinder?

Small amounts of water dripping from the tundish during normal heating cycles is expected, as water expands when heated and the pressure relief valve may release a small amount. However, continuous or heavy discharge indicates a fault condition requiring attention.