The Infinity 32e uses two transformers, and getting the correct one matters — ordering the wrong unit means delay and wasted cost on a part that was never going to fix the fault. The P70EV-720 is Transformer (B), the second unit in the 32e's transformer pair, supplying AC 30–50V, AC 180–220V, and AC 12–18V to the PCB circuits. When any of these outputs drift outside range on a standby test, Transformer (B) is the component at fault.
Transformer voltages should be measured with the appliance in standby, not while it's running — an important distinction for accurate bench diagnosis before ordering a part. A faulty transformer starves the circuits it feeds of their voltage supply, and depending on which output is affected, the symptoms can range from total appliance failure to intermittent switching, no ignition, or fault codes pointing at components that are actually working correctly. Replacing the PCB on the strength of one of those symptoms, when the transformer is the real cause, means paying twice.
This genuine P70EV-720 is built to the same specification as the original factory-fitted Transformer (B), matching connector configuration and voltage outputs so it integrates directly with the existing wiring.
⚠ Important: The Infinity 32e has two transformers with different part numbers. Test methodically in standby mode and confirm Transformer (B) is the fault before ordering. All electrical work must be carried out by a Gas Safe registered engineer.
If a standby voltage test confirms Transformer (B) is out of range, this genuine part gets the correct component on order the first time, rather than risking a delay from ordering the wrong one of the 32e's two transformers. It also protects you from an easy misdiagnosis — plenty of transformer faults present as PCB or ignition problems, and replacing the PCB first when the transformer was the real cause just means paying for two repairs instead of one.
Order the Rinnai P70EV-720 Transformer (B) 32e online today.
| Manufacturer | Rinnai |
|---|---|
| Part Number | P70EV-720 |
| Product Type | Transformer (B) – Secondary Transformer |
| Compatible Model | Rinnai Infinity 32e (REU-V3232W) |
| Voltage Outputs (Standby) | AC 12–18V / AC 30–50V / AC 180–220V (to PCB Circuits) |
| Function | Supplies Low AC Voltages to PCB and Appliance Control Circuits |
| Appliance Type | Continuous Flow Gas Water Heater |
| Note | Infinity 32e Uses Two Transformers – Confirm Transformer (B) / P70EV-720 Before Ordering |
| Installation | Gas Safe Registered Engineer Required |
