Wenalytics for QSR and Restaurant

Frequent Repair Issues:

• Not cooling (unit “too warm” – often due to compressor or coil icing); Ice/frost buildup on evaporator; Door gasket leaks causing warm air ingress.

Recommended IoT Sensors:

• Temperature sensors (inside cooler/freezer)
• Door-open sensor
• Refrigerant pressure sensor

Sensor Utility:

• Alerts if internal temp rises above safe range (prevent food spoilage); Detects if door is left ajar; Monitors refrigerant pressure to catch leaks early (prevent compressor failure).

Frequent Repair Issues:

• Not harvesting ice (machine runs but no ice drops – ~44% of issues) due to frozen evaporator or water supply issues; Water leaks (hose/inlet or drain clogs); Error codes indicating component failures.

Recommended IoT Sensors:

• Temperature sensors (evaporator coil)
• Water flow sensor (or level sensor in bin)
• Leak detector

Sensor Utility:

• Senses abnormal icing (temp stays too low/high on evaporator) to prompt defrost or maintenance; Detects if water flow drops (clogged filter or supply off); Leak detector catches overflowing drain or line leaks early.

• Not cooling adequately (37% of HVAC incidents) – often caused by refrigerant leaks or condenser failures; Leaks (water leaking from AC – e.g. clogged condensate drain); Not heating (burner or heating element issues).

Recommended IoT Sensors:

• Thermostat sensors (smart thermostats with temp/humidity)
• Current/Power meter (for compressors/fans)
• Refrigerant pressure sensors and vibration sensors (on condenser unit)

Sensor Utility:

• Continuously tracks ambient temp vs. setpoint – sends alert if AC can’t maintain target (signals a cooling problem); Monitors compressor and fan electrical load – erratic amp readings can flag a failing motor (predictive alert before a breakdown); Refrigerant pressure trends reveal slow leaks before cooling loss; Detects excessive vibration in HVAC unit (indicates fan imbalance or impending motor fail).

• Poor cleaning (dishes not coming out clean due to spray arm clogs, low wash pressure, or low wash temp); Leaking during operation (worn door seals, cracked hoses); Not draining (clogged drain or pump failure leading to floods)..

Recommended IoT Sensors:

• Water temperature sensor (in wash tank)
• Water pressure sensor (on wash and rinse lines)
• Leak sensor (under machine)
• Current sensor (on wash pump motor)

Sensor Utility:

• Ensures wash water reaches sanitizing temperature (alerts if below spec – heater may be failing); Monitors spray pressure – a drop can indicate a clogged nozzle or pump issue; Leak sensor catches drips or floods under machine early; Pump motor current draw is tracked – a spike might signal a jammed impeller or an impending motor failure (enabling proactive fix).

• Leaks in plumbing lines or fixtures (over 30% of plumbing calls) – leaky faucets, pipe joints, etc.; Clogs/Backups – e.g. clogged drains or toilets causing backups (drain clogs ~18% of issues); Fixture parts failures (e.g. broken faucet cartridges or flush valves).

Recommended IoT Sensors:

• Water flow meter (on main and branch lines)
• Water leak sensors (on floors under sinks, near toilets, etc.)/li>
• Drain flow sensor or smart level sensor (in floor drains/sewer clean-outs)

Sensor Utility:

• Flow monitoring detects continuous flow or abnormal usage when water should be off (flags hidden leaks or a running toilet valve); Leak detectors give instant alert of water on floors (pipe burst or overflow) – preventing water damage; Smart drain sensors warn of slow draining or high water in floor drains (catch clogs before an overflow).

Frequent Repair Issues:

• Heating failures – burner/pilot or element not igniting (no heat); Oil filtration clogs (pump or filter blocked, oil not filtering); Thermostat malfunctions causing incorrect oil temp (too hot or too cool).

Recommended IoT Sensors:

• Oil temperature sensor
• Pressure sensor (in filtration line or pump)
• Current/vibration sensor (on gas valve or fryer burner blower)

Sensor Utility:

• Monitors oil temp trends to ensure proper heating (alerts if out of range to prevent undercooked or burnt food); Detects rising pressure or vibration in pump (indicates clog or wear for predictive maintenance); Senses ignition cycles and can flag failed ignition attempts (prevent surprise fryer downtime).

• Poor airflow or smoke buildup (from grease-clogged filters/ducts); Exhaust fan motor failures or belt breaks (fan not running); Excess grease accumulation creating fire risk.

Recommended IoT Sensors:

• Airflow sensor or differential pressure sensor (across hood filters)
• Vibration sensor (on fan motor)
• Grease level sensor (in drip trays or ducts)

Sensor Utility:

• Alerts if airflow drops below normal (indicating clogged filters or fan outage); Vibration/amp monitoring of fan motor to predict failure (e.g. bearings wear – vibration increases); Warns when grease trap or hood grease cup is full to schedule cleaning (fire safety).

• Uneven or insufficient heating (fails to reach set temp due to faulty heating elements or calibration); Ignition/pilot problems in gas ovens (pilot won’t stay lit); Worn door seals causing heat loss.

Recommended IoT Sensors:

• Temperature probes (multiple zones inside oven)
• Gas leak detector (near oven if gas-fired)
• Door sensor (door seal status by sensing proper closure)

Sensor Utility:

• Verifies oven temperature uniformity and alerts if unable to hold setpoint (indicating element or thermostat issue); Gas sensor for safety—alerts on any gas leakage; Door sensor can indicate a poor seal or door left open (energy waste and uneven cooking).

• Overheating (almost half of calls are unit running too warm)
• Worn door gaskets or hinges (parts replacement)
• Water leaks (from clogged drain or melting ice).

Recommended IoT Sensors:

• Temperature sensor (inside unit)
• Door-open sensor
• Leak detector (pan or floor)

Sensor Utility:

• Continuous temp monitoring with instant alerts if out of range; Notifies if door is frequently open (staff training or gasket fix); Leak sensor spots drain backups or condensation overflow before flooding.

• Outlet issues – burned out or overloaded outlets (often need replacement or new install – ~21.8% of electrical service)
• No power to equipment (tripped breakers or GFI, ~12% of issues)
• Lights out (burnt bulbs or fixture wiring problems)

Recommended IoT Sensors:

• Smart power meters or smart breakers (monitor circuit load per circuit/outlet)
• Temperature sensors (in electrical panels or at critical outlets)
• Lighting sensors (smart occupancy or photocell sensors for lights)

Sensor Utility:

• Energy monitoring per circuit detects overloads or unusual draw – can send alerts before breakers trip and identify over-amped circuits
• Thermal sensors in panels/outlets catch overheating connections (prevent electrical fires by flagging a scorched outlet early)
• Smart lighting sensors report lamp failures or excess energy use (e.g. a flickering ballast) and can reduce energy costs by ensuring lights are off when not needed.

• Leaks (syrup or water leakage at fittings – ~22% of dispenser issues)
• Not dispensing drinks (no flow – pump failure, empty syrup, or ice maker issue)
• Mix ratio or carbonation problems (flat soda due to CO₂ supply)

Recommended IoT Sensors:

• Flow sensors (on syrup and water lines)
• Pressure sensor (CO₂ tank regulator or syrup pump)
• Leak sensor (in dispenser cabinet drip pan)

Sensor Utility:

• Flow sensors verify each dispense has proper volume – can detect a blocked nozzle or empty syrup bag when flow drops (alert staff to replace syrup)
• CO₂ pressure sensor signals low gas pressure before drinks go flat (preemptively replace CO₂ tank)
• Leak sensor in the machine cabinet catches leaks from lines or valves to avoid sticky messes and equipment damage.

• Burners not igniting or only partial flame (due to clogged jets or faulty igniters)
• Not heating (nearly 1/4 of issues – e.g. pilot out or gas supply off)
• Broken knobs or valves (parts replacements)

Recommended IoT Sensors:

• Thermocouple/Temperature sensor (surface temp monitoring)
• Flame sensor or optic sensor (to confirm burners lit)
• Smart knob sensors (detect if a knob is present and in correct position)

Sensor Utility:

• Surface temp sensor spots sections not reaching target heat (sign of burner or thermostat fault)
• Flame detection can trigger re-ignition or alert if a burner fails (prevent gas buildup)
• Detects missing or broken knob and can notify maintenance (avoiding manual workarounds).

• Insufficient hot water (water not heating or slow recovery – often a bad heating element, gas burner or thermostat)
• Leaking tank or valves (puddle around heater)
• Sediment buildup causing noise and reduced capacity.

Recommended IoT Sensors:

• TTemperature sensor (on hot water outlet)
• Water leak sensor (floor at heater base)
• Pressure sensor (tank pressure or relief valve monitor)

Sensor Utility:

• Flags if outlet water temp drops below setpoint or fluctuates (early sign of element or burner issues, so maintenance can be scheduled)
• Floor leak sensor instantly warns of a tank leak (avoids catastrophic flood and allows timely replacement)
• Pressure sensor or smart relief valve monitors abnormal pressure spikes (preventing unsafe conditions and energy waste from stuck valves).