Product Overview
This document provides essential information regarding the Convotherm replacement spring, designed for specific Convotherm oven timer mechanisms. This component is crucial for the proper functioning of the timer and associated damper systems in compatible Convotherm models.

Image showing the Convotherm replacement spring, featuring its black plastic housing and two metal prongs, designed for timer mechanisms in Convotherm ovens.
The spring is specifically engineered for:
- Convotherm OD12.20, OD10.20, OD20.20, OD10.10 series ovens.
- Timer mechanisms with a 6 x 4.6 mm axis.
- Applications in combined electric and gas convection ovens, particularly for the gas version timer.
Its primary function is to facilitate the correct operation of the timer and the associated damper, ensuring precise control over cooking processes.
Specifications
| Feature | Detail |
|---|---|
| Product Type | Replacement Spring for Timer Mechanism |
| Brand | Convotherm |
| Model Compatibility | OD12.20, OD10.20, OD20.20, OD10.10 (for timer) |
| Axis Dimensions | 6 x 4.6 mm (diameter) |
| Application | Combined damper, Gas convection oven, Electric convection oven (Gas version timer) |
| Manufacturer Part Number | 4251391668638 |
| ASIN | B078HWB7H7 |
| Online Release Date | August 19, 2022 |
Installation Instructions
This spring is a replacement component for the timer mechanism in compatible Convotherm ovens. Installation should only be performed by qualified personnel or a certified technician due to the nature of working with electrical and gas appliances.
- Safety First: Ensure the oven is completely disconnected from all power sources (electrical and gas) before beginning any work. Allow the appliance to cool down if it has been in operation.
- Access the Timer Mechanism: Carefully locate and access the timer assembly within the Convotherm oven. This may require removing panels or covers. Refer to the specific service manual for your oven model for detailed access procedures.
- Remove the Old Spring: Identify the existing spring that requires replacement. Note its orientation and how it connects to the timer's axis and other components. Carefully detach the old spring.
- Install the New Spring: Position the new Convotherm spring (Model 4251391668638) in the exact orientation as the one removed. Ensure the 6 x 4.6 mm axis fits securely into the spring's opening. Connect the prongs or attachment points of the spring to their respective locations within the timer mechanism.
- Verify Functionality: Before reassembling, manually check the movement of the timer mechanism to ensure the new spring allows for smooth and correct operation.
- Reassembly: Carefully reattach all panels and covers that were removed. Ensure all connections are secure.
- Test Operation: Reconnect the oven to its power sources. Perform a functional test of the timer to confirm proper operation.
Note: Improper installation can lead to appliance malfunction or safety hazards. If you are unsure about any step, consult a professional technician.
Operating Principles
The Convotherm timer spring is a mechanical component that does not require direct user operation. Its function is integral to the internal workings of the oven's timer and damper system. When the timer is set, the spring provides the necessary tension or resistance to facilitate the precise movement and positioning of internal gears and levers, ensuring accurate timing and proper control of the oven's functions, such as heating cycles or damper adjustments.
Users interact with the oven's timer controls, and the spring's role is to ensure these controls translate into accurate mechanical actions within the appliance.
Maintenance
As a mechanical component located within the oven's internal timer mechanism, the Convotherm spring requires minimal direct maintenance. However, periodic inspection during routine oven servicing can help ensure its longevity and proper function.
- Visual Inspection: During any scheduled maintenance of the oven, visually inspect the spring for signs of wear, corrosion, deformation, or breakage.
- Cleanliness: Ensure the area around the timer mechanism is free from grease, debris, or food particles that could impede the spring's movement or cause premature wear. Use a soft, dry cloth for cleaning.
- Lubrication: The spring itself typically does not require lubrication. If any moving parts of the timer mechanism require lubrication, refer to the official Convotherm service manual for recommended lubricants and procedures.
- Replacement: If the spring shows any signs of damage or the timer mechanism is not functioning correctly, replace the spring with an authentic Convotherm part to ensure optimal performance and safety.
Regular professional servicing of your Convotherm oven will help identify and address any potential issues with internal components like this spring before they lead to significant malfunctions.
Troubleshooting
Issues related to the timer spring typically manifest as malfunctions of the oven's timer or associated damper system. If you experience any of the following problems, the spring may be a contributing factor requiring inspection or replacement.
| Symptom | Possible Cause (Spring Related) | Recommended Action |
|---|---|---|
| Timer does not advance or is stuck. | Broken, bent, or fatigued spring preventing proper gear movement. | Inspect the spring for damage. Replace if necessary. |
| Timer advances too quickly or erratically. | Spring has lost tension, allowing components to move too freely. | Inspect the spring for loss of tension or deformation. Replace if necessary. |
| Damper (if controlled by timer) not opening/closing correctly. | Spring not providing correct force for damper mechanism. | Verify spring integrity and proper installation. Replace if faulty. |
| Unusual noises from timer area. | Damaged or misaligned spring rubbing against other components. | Inspect spring for misalignment or damage. Realign or replace. |
Important: Always disconnect power before inspecting internal components. If troubleshooting does not resolve the issue, or if you are uncomfortable performing these checks, contact a certified Convotherm service technician.
Warranty and Support
This Convotherm replacement spring is designed for durability and performance. For specific warranty information regarding this spare part, please refer to the terms and conditions provided by your original point of purchase or contact Convotherm directly.
Generally, products purchased may be eligible for a refund or replacement within 30 days, subject to the seller's return policy. Please retain your proof of purchase for any warranty or return claims.
For technical support, service, or to inquire about other genuine Convotherm spare parts, please contact Convotherm customer service or an authorized Convotherm service partner. Information regarding spare parts availability may vary by region.
Manufacturer: Convotherm
For further assistance, please visit the official Convotherm website or consult your oven's main user manual.





