• Red temperature controller with copper rod on a white background
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Heatrae Sadia

Heatrae Sadia 95980009 11" Resettable Overheat Thermostat (VKL2351 Safety Cut-Out)

Heatrae Sadia 95980009 11" Resettable Overheat Thermostat (VKL2351 Safety Cut-Out)

Brand: Heatrae Sadia

SKU:HS95980009

GTIN: 5012496959804

£65.29 GBP
£65.29 GBP
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Genuine Heatrae Sadia 95980009 Resettable Overheat Thermostat

The Heatrae Sadia 95980009 is a genuine 11-inch resettable overheat thermostat designed to provide an important layer of safety protection within compatible hot water cylinders, water heaters and commercial calorifiers.

Acting as an over-temperature safety cut-out, the thermostat helps protect the system by disconnecting power if excessive water temperatures are detected. Once the cause of the fault has been identified, the thermostat can be manually reset to restore operation.

Used across a range of Heatrae Sadia, Megaflo, Andrews and commercial hot water systems, the 95980009 is a direct replacement for worn, faulty or repeatedly tripping safety thermostats.

Why Might an Overheat Thermostat Need Replacing?

Overheat thermostats are designed to protect hot water systems from excessive temperatures. While they can often be reset following a trip event, repeated tripping or failure to reset may indicate that the thermostat itself has become faulty.

Common signs that replacement may be required include:

  • No hot water from the immersion heater
  • The reset button repeatedly trips
  • The thermostat will not reset
  • Intermittent heating performance
  • The hot water system shuts down unexpectedly
  • Evidence of overheating within the cylinder

If the thermostat continues to trip after replacement, the underlying cause should be investigated by a qualified engineer.

Overheat Thermostat vs Standard Immersion Thermostat

Many hot water systems use two separate thermostats that perform different functions.

A standard immersion thermostat controls normal water temperature during day-to-day operation, switching the immersion heater on and off as required.

An overheat thermostat acts as a safety device. If abnormal temperatures occur, it disconnects power to help prevent overheating and protect the cylinder, immersion heater and associated components.

The Heatrae Sadia 95980009 is designed specifically as a resettable over-temperature safety thermostat.

Looking for the standard temperature control thermostat rather than the overheat safety cut-out? View the Heatrae Sadia 95980025 11" Rod Thermostat.

Compatible Models

Heatrae Sadia

  • FBM 25
  • FBM 50
  • FBM 75
  • FBM 125

Megaflo Flexistor

  • 400L
  • 500L
  • 800L
  • 1000L
  • 1250L
  • 1450L
  • 2000L
  • 2500L

Available across selected 6 Bar and 10 Bar variants.

Andrews Flexistor

  • 400L
  • 500L
  • 800L
  • 1250L
  • 1450L
  • 2000L
  • 2500L

Remeha Commercial / Baxi Commercial

Selected:

  • Commercial Calorifiers
  • Direct Calorifiers
  • Solar Calorifiers
  • Flexistor models

Newlec

  • Flatback Cistern Water Heater 25L
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FAQs Heatrae Sadia 95980009 Overheat Thermostat

What is the Heatrae Sadia 95980009 thermostat?

The 95980009 is an 11-inch resettable over-temperature thermostat designed to protect compatible hot water systems from overheating.

Is the 95980009 a safety cut-out?

Yes. It functions as a manual reset high-limit safety thermostat that disconnects power if excessive temperatures are detected.

Why has my overheat thermostat tripped?

Common causes include a faulty control thermostat, overheating immersion heater, wiring faults or excessive water temperatures within the cylinder.

Can I simply reset the thermostat?

The thermostat can be reset, but repeated tripping usually indicates an underlying fault that should be investigated.

What is the difference between the 95980009 and 95980025?

The 95980025 is typically used as a temperature control thermostat, while the 95980009 is designed as an over-temperature safety cut-out thermostat.