WINNEBAGO MICRO MINNIE 1700BH - LP Gas Detector Replacement

WINNEBAGO MICRO MINNIE 1700BH – LP Gas Detector Replacement

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Complete repair guide for the WINNEBAGO MICRO MINNIE 1700BH – LP Gas Detector Replacement.

Parts & Tools You’ll Need

Step 1: Diagnose and Locate the Faulty Detector

Begin by identifying whether your current LP detector is non-functional, chirping intermittently, or displaying a fault code. Locate the existing detector unit, which in the 1700BH is typically mounted near the kitchen area or interior wall, approximately 6-12 inches below the ceiling. Note the wiring connections and power source—most Winnebago detectors draw 12V DC from the RV’s auxiliary power system. Take a photo of the current wiring configuration before disconnecting anything, as this will guide your reinstallation.

Step 2: Disconnect Power and Remove Old Detector

Turn off the 12V auxiliary power at the main breaker panel to eliminate electrical hazard. Carefully disconnect the 12V wiring harness pigtail from the back of the existing detector unit by gently pulling the connector straight out. Unscrew or unbolt the detector mounting bracket from the wall or ceiling—most are secured with two Phillips-head screws torqued to approximately 8-10 inch-pounds. Remove the detector assembly completely and set aside for proper disposal if it’s a hardwired unit beyond repair.

Step 3: Prepare Mounting Surface and Install Grommet

Inspect the mounting location for any damage, corrosion, or deteriorated sealant around the existing holes. Clean the area thoroughly with a dry cloth and allow any moisture to evaporate completely. If installing new wire pass-throughs, use the Rubber Grommet Wire Pass-Through Kit to create a sealed entry point that prevents propane vapor infiltration and protects wiring insulation. Ensure the grommet sits flush and creates an airtight seal around all wiring.

Step 4: Connect 12V Wiring to New Detector

Take the 12V Wiring Harness Pigtail and identify the positive (red) and negative (black) leads. Strip approximately 1/4 inch of insulation from each lead and insert them into the corresponding terminals on the back of your new Safe-T-Alert 35-742 or MTI Industries Dual LP/CO Alarm detector. Secure connections using the Wire Nut Assortment, twisting clockwise until tight, then wrap with electrical tape to prevent moisture intrusion and accidental disconnection.

Step 5: Mount Detector and Secure Wiring

Position the new detector unit at the predetermined mounting location, ensuring it’s centered and level using a small spirit level. Install the mounting bracket and secure with two screws torqued to 8-10 inch-pounds—avoid over-tightening, which can crack the detector housing. Route the 12V harness through the rubber grommet and along existing wire channels, securing with cable clips every 12-18 inches to prevent chafing and vibration damage during travel.

Step 6: Pressure Test and Check for LP Leaks

Before restoring full power, conduct a propane system leak inspection using the Propane Leak Check Spray (Oatey). Turn on the main propane valve and spray the solution around all connection points: the regulator inlet, copper tubing connections, and appliance shutoff valves. Watch for bubble formation, which indicates a leak requiring immediate repair or tightening—do not activate the detector yet if leaks are present. Pay special attention to the Two-Stage LP Regulator if recently serviced, as these are common leak sources.

Step 7: Restore Power and Verify Detector Function

Switch the 12V auxiliary power back on and observe the detector for an initial power-up sequence—most units display a brief LED flash or chirp confirming proper electrical connection. Wait 30 seconds for stabilization, then check that the unit responds to the test button with an audible alarm. If equipped with a dual LP/CO alarm, verify both sensors activate during testing. Document the detector model and installation date in your RV maintenance log, and set a replacement reminder for the manufacturer’s recommended interval, typically 3-5 years.