6 Reasons Your Home Isn’t Getting Consistent Hot Water

<Snippet: An inconsistent hot water supply can be quite annoying and draining after a long day at work. There are many reasons for this issue, which we’ve covered in the blog. Read the post to explore these reasons in detail and learn about some popular fixes. >
The lack of hot water can be a major irritant after a tiring day at work, especially in a place like Singapore.
People use hot water pretty frequently to take a bath, due to its therapeutic effects. The water relaxes their muscles, regulates their blood flow, and helps them feel relaxed. A hot water bath also helps them sleep easily and reduces their blood pressure.
So, not getting hot water from your gas water heater in Singapore can be distressing. But why does this problem occur? Let’s explore the reasons and some solutions below.
Why Aren’t You Receiving Hot Water Consistently at Your Home?
You could be facing an inconsistent hot water supply issue at home due to the following issues:
1. Ignition problems
The ignition problem in your Ferroli gas water could be caused by issues like:
i) a malfunctioning flame detection electrode, which is unable to sense the fire
ii) gas supply issue preventing the gas from reaching the heater
iii) excessive condensation that is affecting the ignition process
It will be denoted by the A01 Ferroli water heater error code. To fix this issue, you should check the gas supply, reset the boiler, and examine the ignition electrode. However, doing so as a novice can damage the heater further.
So, you should call a licensed technician who is certified by the Public Utilities Board and has a Certificate of Statutory Completion.
2. Overheating protection trip
The overheating protection of your gas water heater in Singapore can trip due to three main reasons. These are:
i) faulty heating sensors
ii) a lack of water circulation:
iii) air present inside the heater.
Let’s explore them briefly below.
| Issue | Reason | How The Technician Will Fix It |
| Faulty heating sensors | Incorrectly placed within the heater during the manufacturing or installation process. | Correct the placement of the sensor or replace it entirely |
| Lack of water circulation | Faulty or stuck water circulation pump | Unscrew the pump and power the heating to release air and water |
| Air present inside the heater | Leaks during installation | Power off the boiler, open the purge valve lid without unscrewing, bleed radiators, and fill the water up to 2 bars of atmospheric pressure |
Table 1: Reasons for A03 Errors In Ferroli Gas Water Heaters
3. Air pressure switch error
An air pressure switch Ferroli water heater errorcan shut down the heater completely and restrict the hot water supply. It can be caused by the air pressure switch being stuck when open or closed, or an obstructed or wrongly sized flue baffle.
The flue baffle is the metal piece in your heater that pushes out the flue gas (waste gas) completely. You should have the air pressure switch replaced to fix this issue. This issue will be denoted by the F07 error code.
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4. Faulty hot water sensor
A faulty hot water sensor in your Ferroli gas water heater in Singapore leads to an inconsistent or no water supply. It is indicated by the F11 error code and is caused by a damaged or loose wiring between the sensor and PCB.
The technician will fix this issue by examining the sensor for corrosion or damage and cleaning the wiring contacts. If these measures don’t fix anything, the technician checks the sensor resistance and replaces it in case of erroneous readings.
5. Under supply of electricity
Sometimes, the lack of a proper supply of mains electricity under 170 Volts can affect the overall water heater. This issue is denoted by the F34 error code. The Ferroli water heater technician will check the mains voltage and then choose a water stabiliser if required to fix the issue.
They might also check the PCB and replace it in case of any damage.
6. Reduced water pressure
Low water pressure inside your Ferroli gas water heater in Singaporeis caused by:
i) partially closed valves
ii) block aerators
iii) corroded pipes
iv) faulty pressure regulators
The technician will fix the issue (denoted by the F37 error code) in the following manner:
| Issue | How The Technician Will Fix It |
| Partially Closed Valves | Turning off the gas supply and turning the handle back and forth until the valves stabilize |
| Blocked Aerators | Cleaning the aerator |
| Corroded Pipes | Replacing the corroded pipes |
| Faulty Pressure Regulators | Replacing the faulty pressure regulators |
Table 2: Reasons for F37 Errors In Ferroli Gas Water Heaters and How To Fix Them
Concluding Remarks
Your Ferroli gas water heater in Singaporecan produce an inconsistent hot water supply for many other reasons. These include an intervention from the exchanger protection system, faulty gas valves, internal controller errors, or fan problems.
Each of these issues will be denoted by error codes like F43, A09, F50, and F15 error codes, respectively. You should explore these issues by reading your gas heater’s manual and asking a technician for prevention tips.
Want to Enjoy a Steady Supply of Hot Water?
Get in touch with a reputed service provider of Ferroligas water heaters in Singapore, near you, to fix these issues and enjoy a supply of hot water again!




