578641 Genuine Oven Thermostat 90 1 for Fisher & Paykel Ovens and Freestanding Cookers, Replacement Temperature Thermostat

Part 578641 is a genuine Fisher & Paykel thermostat catalogued as type 90 1. It belongs to the brand's oven and cooker range, but the exact appliance and models aren't on file, so this is one to order by number. Check the label or body of your old thermostat for 578641, or send your model and serial number through the parts enquiry form and we'll confirm the match.

Signs of a faulty oven thermostat

A thermostat switches power on and off as the temperature it senses rises and falls. In an oven that might be the main cooking thermostat, which holds the heat you've set, or a control thermostat for something like the cooling fan. When one fails, the oven can run far hotter or cooler than the setting, cycle erratically, never heat, or not turn off. A fan that never starts or never stops can also point to a thermostat fault. An oven thermometer on the centre shelf is a simple way to check the cavity temperature.

Part details

• Genuine Fisher & Paykel part 578641
• Thermostat, type 90 1
• For Fisher & Paykel ovens and cookers
• Licensed electrician to fit on hard-wired appliances

Thermostat fitting tips

Switch the appliance off at the switchboard and let it cool. A licensed electrician should fit thermostats on hard-wired appliances. Photograph the terminals before removal. If the thermostat has a capillary and bulb, feed it through carefully without kinking it and clip the bulb back where the old one sat. Check the temperature once fitted.

Questions about this part

What does 90 1 mean?

90 1 identifies this thermostat version. Rather than relying on that reference alone, match the number 578641 on your old thermostat, or send your model number through the parts enquiry form so we can confirm.