The Wacker Neuson is a genuine OEM Photo Cell designed for the HSH700, HSH650, CUB700, and CUB400 series hydronic surface heaters and indirect-fired air heaters. As a factory-original component, this Photo Cell is sourced directly through Wacker Neuson's authorized parts supply chain, ensuring it meets the exact electrical and sensing specifications of the original unit. Compatibility spans a wide range of configurations including skid-mounted, portable, and mobile indirect-fired diesel heater models across the CUB400, CUB700, and CUB700GM series, as well as MC5200 Mobile Drying Systems and HP252 units.
Key Features
- Genuine OEM Sensing Accuracy — Factory-original Photo Cell calibrated to the correct light-frequency threshold for reliable flame detection in Wacker Neuson heater combustion systems.
- Direct Drop-In Replacement — Matches the original mounting configuration and electrical connector for the HSH700, HSH650, CUB700, CUB400, HP252, and MC5200 series units.
- Broad Model Coverage — Fits skid-mounted, portable, and mobile indirect-fired diesel configurations, including the CUB700GM with genset and CUB700 flue kit variants.
- Combustion System Integrity — A functioning Photo Cell confirms burner ignition and signals the control board that a stable flame is present; a failed cell can cause nuisance lockouts or prevent the heater from firing at all.
- Fuel System Safety Relevance — The Photo Cell is a critical safety-sensing component in the burner control circuit; using the correct OEM-spec part helps ensure the heater's automatic shutoff logic operates as designed.
A Photo Cell — sometimes called a flame sensor or cad cell — is a light-sensitive resistor positioned in the burner assembly to detect the presence of a flame during the ignition sequence. When the burner fires successfully, the cell's resistance drops in response to the light emitted by the flame, signaling the burner control board to allow normal heating operation to continue. If the Photo Cell degrades, becomes coated with soot, or fails entirely, the control board cannot confirm ignition, causing the heater to shut down on lockout or refuse to start — an expensive problem on any temperature-sensitive worksite.
Part Details
| Part Number | 5000169292 |
|---|---|
| Old Part Number | 0169292 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Photo Cell |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HSH700 | HSH700G | 5000620243 |
| HP252 | HP252 | 5000620249 |
| Skid Mounted-Indirect Fired Ai r Heat, Diesel | CUB700 | 5000620213, 5000620687, 5000620207 |
| Skid Mounted-Indirect Fired Ai r Heater, Diesel | CUB400 | 5000620211, 5000620212, 5000620615 |
| HSH650 | HSH650 | 5000620991 |
| Mobile Drying System | MC5200 | 5000620201, 5000620232 |
| Mobile Indirect Fired Air Heat er, Diesel w/Genset | CUB700GM | 5000620759 |
| Mobile Indirect Fired Air Heat er, Diesel | CUB700M | 5000620758 |
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.
