The Wacker Neuson Photo Cell is a genuine OEM component designed for the HD 70 indirect-fired air heater. Sourced directly from Wacker Neuson, this part carries the same specification as the original, ensuring correct operation within the heater's burner control system. If your HD 70 is experiencing ignition faults, burner lockouts, or inconsistent heat output, replacing a worn or failed photo cell with part number is a direct, confirmed fix for that machine.
Key Features
- Genuine OEM Flame-Detection Accuracy — Built to the original optical sensitivity specification, so the burner control module receives a clean, consistent signal and does not trip false lockouts.
- Direct Drop-In Replacement — Matches the original mounting configuration and wiring connector of the HD 70, allowing straightforward swap-out during servicing.
- Confirmed HD 70 Fitment — Verified fit for the Wacker Neuson HD 70 indirect-fired air heater; always cross-reference part number 5200023838 before ordering.
- Restores Reliable Burner Cycling — A functioning photo cell keeps the combustion cycle running correctly; a degraded cell causes nuisance shutdowns and interrupted heat delivery on the jobsite.
- Fuel-System Safety Compliance — The photo cell is a safety-critical component in the burner proving circuit; using the correct OEM part maintains the intended flame-supervision function and prevents uncontrolled fuel release.
The photo cell — also called a flame sensor or flame eye — is an optical component in the burner assembly of an indirect-fired air heater. It detects the presence of a flame by sensing the light produced during combustion and relaying that confirmation signal to the burner control board. When the cell confirms a live flame, the control board allows the fuel valve to stay open and the heating cycle to continue; if the cell fails to detect the flame — due to contamination, aging, or physical damage — the control board interprets this as a dangerous condition, shuts off the fuel supply, and locks the unit out. A failed or dirty photo cell is one of the most common causes of nuisance lockouts and no-heat faults on indirect-fired heaters.
Part Details
| Part Number | 5200023838 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Photo Cell |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HD 70 | HD70 | 5200019336 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
