Fix & Repair Engineers were called out to a commercial kitchen in Twickenham after staff discovered their Nelson commercial dishwasher was not producing hot water, preventing them from sanitising dishes during service. Hot water faults can halt kitchen operations instantly, so the client required a prompt and reliable repair.
Our engineer attended within 24 hours of the booking to diagnose the cause and restore full functionality.
The Call – Twickenham, London
The client requested an engineer to investigate a Nelson dishwasher with no hot water. Without the heating system operating, the machine was unable to complete hygienic wash cycles, resulting in operational downtime for the kitchen.
We arranged a rapid appointment to ensure the fault was resolved with minimal disruption to daily service.
Initial Inspection & Safety Checks
Upon arrival, the engineer:
- Carried out visual checks on the dishwasher’s internal and external components
- Confirmed that no hot water was present during wash cycles
- Tested the heating circuit, thermostats and safety devices
- Ensured electrical and water supplies were functioning correctly
The diagnostic checks quickly indicated that the heating system was not energising due to a safety mechanism being triggered.
Diagnosis – Safety Switch Activated
After completing the relevant tests, the engineer identified the root cause:
- The dishwasher’s safety switch had been activated, preventing the heating element from operating.
This safety device is designed to protect the machine from overheating or running under unsafe conditions. When triggered, it disables the heating circuit entirely.
Fortunately, there were no further faults, and no damage to the heating element, wiring or thermostats.
Repair Work Completed
The engineer carried out the necessary steps to restore the dishwasher safely:
- Reset the activated safety switch
- Inspected surrounding components to ensure no underlying issues were present
- Tested the heating system to confirm water was reaching the correct operating temperature
- Ran a full wash cycle to verify consistent performance
The issue was fully rectified within the hour, allowing the machine to return to service immediately.
Outcome for the Client
Once repaired and tested:
- The Nelson commercial dishwasher successfully produced hot water again
- No additional parts were required
- The commercial kitchen was able to resume normal operations without further downtime
The engineer also advised the client on common triggers for safety switches and the importance of routine servicing to prevent similar interruptions.
Need Fast Commercial Dishwasher Repairs in Twickenham?
Fix & Repair Engineers provide rapid, reliable repairs for all major commercial dishwasher brands, including Nelson, Hobart, Classeq, and more.
Whether you’re experiencing no hot water, poor wash results, fault codes, or water leaks, our engineers diagnose and repair issues quickly to keep your kitchen operating smoothly.
For fast commercial dishwasher repairs across London and the Home Counties, contact Fix & Repair Engineers today.
With many years on the tools in all aspects of the engineering industry has given me a second to none skill set which enables me to provide a leading professional service to my customers with a wealth of knowledge and highly skilled engineers to successfully cover all your plumbing, heating, AC and catering equipment requirements.
